Densification of Aluminum Nitride Ceramics with CaF2 Additive

2008 ◽  
pp. 970-972
Author(s):  
Yan Xiong ◽  
Zheng Yi Fu ◽  
Hao Wang
Keyword(s):  
Aluminum Nitride ◽  
Nitride Ceramics

CBED analysis of impurity distributions in AlN

1990 ◽  
Vol 48 (4) ◽  
pp. 214-215
Author(s):  
Daniel Callahan ◽  
G. Thomas
Keyword(s):  
Aluminum Nitride ◽  
Bulk Material ◽  
Strong Dependence ◽  
Lattice Parameter ◽  
Promising Technique ◽  
Nitride Ceramics ◽  
Surface Phases ◽  
Convergent Beam ◽  
Oxygen Impurities

Oxygen impurities may significantly influence the properties of nitride ceramics with a strong dependence on the microstructural distribution of the impurity. For example, amorphous oxygen-rich grain boundary phases are well-known to cause high-temperature mechanical strength degradation in silicon nitride whereas solutionized oxygen is known to decrease the thermal conductivity of aluminum nitride. Microanalytical characterization of these impurities by spectral methods in the AEM is complicated by reactions which form oxygen-rich surface phases not representative of the bulk material. Furthermore, the impurity concentrations found in higher quality ceramics may be too low to measure by EDS or PEELS. Consequently an alternate method for the characterization of impurities in these ceramics has been investigated.Convergent beam electron diffraction (CBED) is a promising technique for the study of impurity distributions in aluminum nitride ceramics. Oxygen is known to enter into stoichiometric solutions with AIN with a consequent decrease in lattice parameter.

Improving thermal conductivity of aluminum nitride ceramics by refining microstructure

2000 ◽  
Vol 43 (3) ◽  
pp. 114-117 ◽  
Author(s):  
Yaocheng Liu ◽  
Heping Zhou ◽  
Yin Wu ◽  
Liang Qiao
Keyword(s):  
Thermal Conductivity ◽  
Aluminum Nitride ◽  
Nitride Ceramics

Metallized coatings indifferent to aluminum nitride ceramics

1998 ◽  
Vol 55 (3-4) ◽  
pp. 83-87
Author(s):  
V. A. Kursekov ◽  
V. G. Leonov ◽  
A. S. Vlasov
Keyword(s):  
Aluminum Nitride ◽  
Nitride Ceramics

High thermal-shock resistance of aluminum nitride ceramics

Refractories ◽  
1980 ◽  
Vol 21 (3-4) ◽  
pp. 183-186
Author(s):  
F. A. Fekhretdinov ◽  
V. B. Kalinin ◽  
Yu. I. Vikhrev
Keyword(s):  
Aluminum Nitride ◽  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Nitride Ceramics ◽  
Shock Resistance ◽  
High Thermal Shock Resistance

scholarly journals Corrosion Resistance of Aluminum Nitride Ceramics Modified by Pre-Oxidation and Sputtering Metallization in Water in 100.DEG.C..

2001 ◽  
Vol 50 (5) ◽  
pp. 538-542
Author(s):  
Hiroyasu TAMAI ◽  
Takashi HAMAUZU ◽  
Akihito RYUMON ◽  
Hitohumi TANIGUCH ◽  
Kaoru AOKI ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Nitride ◽  
Nitride Ceramics

Study on microstructure and dielectric properties of aluminum nitride ceramics

2015 ◽  
Vol 106 ◽  
pp. 404-410 ◽  
Author(s):  
Xiulan He ◽  
Lei Shi ◽  
Yingkui Guo ◽  
Junwang Liu ◽  
Feng Ye
Keyword(s):  
Dielectric Properties ◽  
Aluminum Nitride ◽  
Nitride Ceramics
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